Balance in a member line in a multi-Line plan
Hi. I bought two prepaid sim cards for myself and my wife two months ago (one $40 and one $50 with autopay option) when we entered the united states as international students. After a month I decided to change both plans to $35 in a Multi-Line discounted plan (totally $50 with autopay and multiline discounts). Because I was on autopay and I did not want to be charged $90, I did this two days before the due date. Surprisingly at&t not only charged me $90 agian but also disconnected the member line (my wife's) and asking for another $2 payment. I wanted to pay $2, but the minimum payment was set $10, so I paid $10 which means totally $100!!! and $50 more than what I supposed to pay.
As I checked in my wife's pre-paid account, I saw there is a current balance of $65. I don't know why when as the owner of the multiline I do all the payments, the balance went to her account. I waited till this month and at&t charged me another $50 for two lines, and did not touch my wife's current balance. As we have been overcharged by at&t, how can we use this balance before it will be expired in less than two months?